Philadelphia Vireo ( Viréo de Philadelphie ) |
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| Vireo philadelphicus |
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General NotesThe population of Philadelphia Vireo appears to be increasing, according to a recent analysis of Breeding Bird Survey records conducted by National Audubon Society scientists. It is possible that the North American population has increased by as much as 166% in the last 40 years. There is sufficient data about this species to have a very high level of statistical confidence in this magnitude of growth. |
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| Abundance: | Common | Earliest observed date: |
Typical arrival date: |
May 22 | |
| Breeding Status: | Breeding | Latest observed date: |
Typical departure date: |
September 7 |
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Documented Observations |
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May 22-24, June 11-13, 1993. Sixteen observed at Hilliardton Marsh during field work for a Master's thesis by David Locky. |
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July 14, 1998. One observed at Mountain Chutes Camp by Barry Kinch. |
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June 7, 2009. Two observed at Kap-Kig-Iwan Provincial Park by Serge Gendron and Michael Werner |
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